EP1114942A2 - Technique de montage d'un palier - Google Patents

Technique de montage d'un palier Download PDF

Info

Publication number
EP1114942A2
EP1114942A2 EP00118104A EP00118104A EP1114942A2 EP 1114942 A2 EP1114942 A2 EP 1114942A2 EP 00118104 A EP00118104 A EP 00118104A EP 00118104 A EP00118104 A EP 00118104A EP 1114942 A2 EP1114942 A2 EP 1114942A2
Authority
EP
European Patent Office
Prior art keywords
setscrew
outer race
race
face
retained
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00118104A
Other languages
German (de)
English (en)
Other versions
EP1114942A3 (fr
EP1114942B1 (fr
Inventor
Gen Karuizawa Manufacturing Unit Sasaki
Shinichi Karuizawa Manufacturing Unit Akao
Kennosuke Karuizawa Manufacturing Unit Kariya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minebea Co Ltd
Original Assignee
Minebea Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minebea Co Ltd filed Critical Minebea Co Ltd
Publication of EP1114942A2 publication Critical patent/EP1114942A2/fr
Publication of EP1114942A3 publication Critical patent/EP1114942A3/fr
Application granted granted Critical
Publication of EP1114942B1 publication Critical patent/EP1114942B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0614—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part of the joint being open on two sides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0666—Sealing means between the socket and the inner member shaft
    • F16C11/0671—Sealing means between the socket and the inner member shaft allowing operative relative movement of joint parts due to flexing of the sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/02—Sliding-contact bearings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49636—Process for making bearing or component thereof
    • Y10T29/49643—Rotary bearing
    • Y10T29/49679—Anti-friction bearing or component thereof
    • Y10T29/49682—Assembling of race and rolling anti-friction members

Definitions

  • This invention relates to a retaining method for a spherical bearing, in particular, retaining an outer race on the portion to be retained.
  • the spherical bearing in such a manner as an inner race 51 having a sphere is made to be supported by an outer race 52 rotatably and slidably, the outer race 52 is made to be retained with a race retention 54 formed on a housing 53, snap rings 56 are made to be retained respectively with annular grooves 55 formed on the race hole 54 at a given spacing and the outer race 52 is retained with a housing 53 by making an end face 52a of the outer race 52 to be engaged with a pair of snap rings 56.
  • a pair of annular retaining grooves 55 to be retained with the snap rings 56 are formed by a machinery working on a wall face 54a of the race retention hole 54 and since, from an assembling view point, a clearance of the spacing of a pair of annular grooves 55 are set in plus, in such spherical bearing 57 as being mounted on the housing 53, as shown in Fig. 11, a gap is generated between the snap ring 56 and the end face 52a of the outer race 52 and due to an axial load entering the outer race 52, it has happened to be displaced between a pair of snap rings 56.
  • the end face 52a of the outer race 52 is apt to hit the end face 56a of the snap ring 56 and the vibration generated is transmitted to the cavity of the vehicle through a frame to generate an unpleasant noise.
  • the present invention has been made in the light of the above circumstance, and the object thereof is to provide a secure retention method for an outer race of a spherical bearing while controlling manufacturing cost.
  • a retention method of a spherical bearing consisting of an outer race and an inner race the spherical surface of which is supported on the outer race rotatably and slidably, in which the spherical bearing is retained with a race retention hole formed on a portion to be retained, on one side of an inner wall surface of the race retention hole of the portion to be retained a screw portion having a given stroke is formed coaxially with the race retention hole, on other side of the inner wall surface of the race retention hole an annular groove to be retained with a snap ring is formed, on one side of the periphery of the outer race a stepped portion having a diameter smaller than the diameter of the periphery is formed, in the state where the outer race of the spherical bearing is retained with the race retention hole a first snap ring is retained with the annular groove, and in the screw portion a setscrew formed with a through hole in an axial direction is
  • the end face of the setscrew pressures the end face of the stepped portion of the outer race toward the first snap ring, thereby the outer race is clamped by the setscrew and the first snap ring to retain the outer race on the portion to be retained.
  • annular groove is formed to be retained with a second snap ring.
  • an abutting portion to abut to one end face of the outer race is provided on the inner wall of the through hole of the setscrew.
  • the displacement of the outer race in axial direction is limited and can omit the second snap ring in the second aspect to reduce the number of the parts and the assembling processes.
  • Fig. 1 is a sectional view for explanation of one embodiment of the spherical bearing of the present invention.
  • Fig. 2 is a front view of the embodiment of the spherical bearing of the present invention.
  • Fig. 3 is a sectional view of a housing of the embodiment of the spherical bearing of the present invention.
  • Fig. 4 is a sectional view of an assembly formed by retaining an inner race with an outer race of the spherical bearing of the present invention.
  • Fig. 5 is an explanation view of partially enlarged and sectional view of the embodiment of the spherical bearing of the present invention.
  • Fig. 6 A is a front view for explaining a tightening jig for the setscrew of the embodiment of the spherical bearing of the present invention.
  • Fig. 6B is a plan view for explaining a tightening jig for the setscrew of the embodiment of the spherical bearing of the present invention.
  • Fig. 7 is an explanation view time of tightening the setscrew of the embodiment of the present invention by the tightening jig.
  • Fig. 8 is an explanation view for a case where, in the embodiment of the spherical bearing, the setscrew which is provided with an annular projection as an abutting portion on the inner wall surface of the through hole is used.
  • Fig. 9 is an explanation view for a case where, in the spherical bearing of the embodiment of the present invention, without using a snap ring an end face of the outer race is positioned.
  • Fig. 10 is a sectional view of a conventional spherical bearing.
  • Fig. 11 is an explanation view showing a gap between the end faces of the outer race and of the snap ring in the conventional spherical bearing.
  • Fig. 12 is a sectional view showing another conventional manner (staking).
  • a retention method of a spherical bearing in one embodiment of the present invention is explained based on Figs. 1 - 8. First, an outline of the retention method of the spherical bearing in one embodiment is explained. The retention method of the spherical bearing of the embodiment of the present invention, as shown in Fig.
  • a screw portion 3 is provided coaxially with the race retention hole 2, on a periphery 4a of an outer race 4 a stepped portion 5 having a diameter smaller than the one of the periphery 4a is formed, and by screwing a setscrew 6 formed in an approximately ring shape into the screw portion 3 and being tightened, a front end face 6a of the setscrew 6 presses the end face 5a of the stepped portion 5 of the outer race 4.
  • annular groove 8 is formed, by retaining a first snap ring 7 with the annular groove 8, the outer race 4 is clamped between the setscrew 6 and the first snap ring 7 and the outer race 4 is retained on the housing 1 as a portion to be retained.
  • the housing 1 is formed with a pair of end faces la and 1b in parallel with each other and perpendicular to an axis (hereinafter referred to as merely "axis") of the not shown shaft to be supported (see Figs. 1 and 3), and the race retention hole 2 with which the periphery 4a of the outer race 4 is retained in an ordinary manner is provided coaxially with the axis. Further, as shown in Figs.
  • the screw portion 3 having a diameter larger than the race retention hole 2 is formed, and on the other side of the race retention hole 2 and on the inner wall surface 2a of the race retention hole 2 the annular groove 8 in which the first snap ring 7 is retained is provided.
  • the outer race 4 is formed, as shown in Fig. 4, approximately cylindrical in such a manner as the shape of an inner circumferential surface 4b in a sectional surface including the axis becomes a circle, which is positioned on the circle 10 having diameter identical with the one of a spherical portion 9a formed on the inner race 9, and by retaining the spherical portion 9a of the inner race 9 with the inner circumferential surface 4b, it supports the inner race 9 rotatably and slidably.
  • the outer race 4 is provided with a stepped portion 5 on the peripheral surface 4a (see Figs. 1and 4), and on the circumferential surface 4b, a liner 11 of a wearing resistance such as polytetrafluoroethylene is covered.
  • the setscrew 6 as shown in Fig. 1, is formed approximately cylindrical having a through hole 12 in the axial direction, and on the periphery thereof a screw 6b to be screwed in the above screw portions 3 is formed, and by being screwed in the screw portion 3 and tightened, the through hole 12 is retained with the stepped portion 5 of the outer race 4 and the front end face 6a of the setscrew 6 abuts to the end face 5a of the stepped portion 5, thereby the front end face 6a of the setscrew 6 is structured to press the end face 5a of the stepped portion 5. Further, on the inner wall surface 12a of the through hole 12, as shown in Figs.
  • an annular groove 6d to be retained with a second snap ring 13 is formed, due to the abutting of the front end face 6a of the setscrew 6 and the end face 5a of the stepped portion 5, an end face 13a of the second snap ring 13 and an end face 4d of the outer race 4 are structured to be abutted with each other.
  • the setscrew 6 is disposed at its rear end face 6c a plurality of recessed portions 6e (see Fig. 2), and, as shown in Fig. 6, is structured in such a manner as it is tightened by an exclusive tightening jig 14 being disposed with the projections 14a corresponding to the recessed portions 6e.
  • an exclusive tightening jig 14 is disposed with the projections 14a corresponding to the recessed portions 6e.
  • an annular projection as an abutting portion 15 is formed on the inner wall surface 12a of the through hole 12 of the setscrew 6, and by abutting an end face 15a of the abutting portion 15 to the end face 4d of the outer race 4, without using the second snap ring 13, it may be constituted to limit the outer race 4 from being displaced in the axial direction. Further, as shown in Fig.
  • it may be constituted by providing on the other end of the race retention hole 2, a hole 17 which is coaxial with the race retention hole 2 and has a diameter smaller than the race retention hole 2 and by clamping an end face 4c and 4d of the outer race 4 with the end face 17a between the race retention hole 2 and the hole 17, and the end face 15a of the abutting portion 15 of the setscrew 6, without using the snap rings 7 and 13, to position the outer race 4.
  • first snap ring 7 and second snap ring 13 may be molded in a unitary manner.
  • an annular projection as a portion 15 to be abutted is formed, by abutting the end face 15a of the portion 15 to be abutted to the end face 4d of the outer race 4, without using the second snap ring 13, the displacement of the outer race 4 in the axial direction can be limited.
  • the first snap ring 7 is retained with the retaining groove 8 formed on the other side of the race retention hole 2 of the housing 1 and the setscrew 6 is screwed in the screw portion 3 provided on one side of the race retention hole 2 and tightened.
  • the front end face 6a of the setscrew 6 presses the end face 5a of the stepped portion 5 of the outer race 4, and by clamping the outer race 4 with the first snap ring 7 and the setscrew 6 and making the gap between the first snap ring 7, the setscrew 6 and the outer race 4 null, since the outer race 4 is retained to the housing 1 as the portion to be retained, the displacement of the outer race 4 in the axial direction can be securely limited.
  • annular groove 6d is formed on the inner wall surface 12a of the through hole 12 of the setscrew 6 and the second snap ring 13 is retained with that groove 6d, in particular, by constituting the setscrew with soft metal such as aluminum and retaining the second snap ring 13 made of a metal of high tension with the annular groove 6d of the setscrew 6, against the annular groove bottom 6f of the setscrew 6 a force in the radial direction of the through hole 12 is applied and the setscrew 6 is expanded, thereby the contact surface pressure between the screw 6b and the screw portion 3 is increased to prevent the setscrew 6 from being loosened.
  • the displacement of the outer race 4 in the axial direction can be more securely controlled.
  • the annular projection as the portion 15 to be abutted is formed on the inner wall surface 6a of the through hole 12 of the setscrew 6, and by abutting the end face 15a of the portion 15 to be abutted to the end face 4d of the outer race 4, the second snap ring 13 can be omitted to simplify the part assembling processes.
  • the first snap ring is retained with the annular groove formed on the other side of the race retention hole, the setscrew 6 is screwed in the screw portion 3 formed on one side of the race retention hole and tightened, the end face of the stepped portion of the outer race is pressed by the front end face of the setscrew, the outer race is clamped with the first snap ring and the setscrew to make the gap between the first snap ring, the setscrew and the outer race null and the outer race is retained to the portion to be retained, the displacement of the outer race in the axial direction is securely limited, and even if the axial load is applied on the bearing, the end face of the outer race is not threatened to hit the snap ring, and even if such a spherical bearing is employed in the steering driving system of vehicles, there is no anxiety that the vibrations are transmitted and unpleasant noises are generated in the vehicle interior.
  • the annular groove is formed on the inner wall surface of the through hole of the setscrew, with which the second snap ring is retained, and in particular, the setscrew is formed with a soft metal such as aluminum and with the annular groove the second snap ring of high tensile is retained, so that to the bottom of the annular groove a force in the radial direction of the through hole is acted and the setscrew is expanded to increase the contact surface pressure between the screw of the setscrew and the screw portion to prevent the setscrew from being loosened. Further, by abutting the end face of the second snap ring to the end face of the outer race , the displacement of the outer race in the axial direction is more effectively controlled.
  • the second snap ring is omitted to simplify the parts assembling processes.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Support Of The Bearing (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Sliding-Contact Bearings (AREA)
EP00118104A 2000-01-05 2000-08-25 Technique de montage d'un palier Expired - Lifetime EP1114942B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000000351 2000-01-05
JP2000000351A JP2001193734A (ja) 2000-01-05 2000-01-05 球面滑り軸受の固定方法

Publications (3)

Publication Number Publication Date
EP1114942A2 true EP1114942A2 (fr) 2001-07-11
EP1114942A3 EP1114942A3 (fr) 2001-10-24
EP1114942B1 EP1114942B1 (fr) 2006-10-18

Family

ID=18529712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00118104A Expired - Lifetime EP1114942B1 (fr) 2000-01-05 2000-08-25 Technique de montage d'un palier

Country Status (5)

Country Link
US (1) US6349470B1 (fr)
EP (1) EP1114942B1 (fr)
JP (1) JP2001193734A (fr)
DE (1) DE60031360T2 (fr)
SG (1) SG88785A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10256334B4 (de) * 2002-12-03 2009-04-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Kugelgelenkvorrichtung für Gestängeverbindungen
EP2831434B1 (fr) * 2012-03-28 2018-07-18 Schaublin SA Palier sphérique comprenant un support

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19935469A1 (de) * 1999-07-28 2000-05-11 Skf Gmbh Verfahren zur Befestigung eines Lagers in einem Lagerschild und Lageranordnung
US7204665B2 (en) * 2004-04-02 2007-04-17 The Cretex Companies, Inc. Support structure apparatus and method
US8801318B2 (en) * 2004-09-03 2014-08-12 Oshkosh Corporation Joint
US7438493B2 (en) * 2005-11-03 2008-10-21 ZF Lemförder Metallwaren AG Cross axis ball and socket joint with sealing ring for cross axis sleeve ends
DE102010042074B3 (de) * 2010-10-06 2012-02-09 Aktiebolaget Skf Lagergehäuse und Lageranordnung
US9316257B2 (en) 2011-04-01 2016-04-19 Roller Bearing Company Of America, Inc. Spherical bearing with sealing member member
US9958011B2 (en) 2011-04-01 2018-05-01 Roller Bearing Company Of America, Inc. Bearing assembly having surface protrusions and a seal
US9562567B2 (en) 2014-02-07 2017-02-07 Roller Bearing Company Of America, Inc. Spherical bearing with axially compressed annular seal
US10288174B2 (en) * 2014-10-06 2019-05-14 Caterpillar Inc. Seal member for joint of machine
US10288173B2 (en) * 2014-10-06 2019-05-14 Caterpillar Inc. Seal member for joint of machine and method of assembling same
CN110182373B (zh) 2015-01-07 2023-01-10 洛德公司 用于飞行器发动机安装架的轴承组件
US20230323917A1 (en) * 2022-04-07 2023-10-12 Federal-Mogul Motorparts Llc Socket joint and method of manufacturing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014767A (en) * 1958-11-24 1961-12-26 Litton Ind Of California Ball joint bearing
US3947077A (en) * 1973-04-18 1976-03-30 Caterpillar Tractor Co. Sealed ball and socket connection
JPH01126430A (ja) * 1987-11-12 1989-05-18 Masahiro Morita 自動調心軸受ユニット
DE4112791C1 (en) * 1991-04-19 1992-07-16 Trw Ehrenreich Gmbh & Co Kg, 4000 Duesseldorf, De Axial strut joint with housing and bearing shell(s) - has L=shaped clamping ring, whose axial shank is radially resilient
US5718517A (en) * 1995-01-09 1998-02-17 Alphatech, Inc. Self-aligning bearing for high temperature applications
EP0962676A2 (fr) * 1998-06-04 1999-12-08 Rexnord Corporation Dispositif de palier avec des surfaces de palier sphériques

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US3754802A (en) * 1972-01-25 1973-08-28 Mpb Corp Self-aligning bearing assembly
US4355250A (en) * 1980-07-17 1982-10-19 General Electric Company Self-aligning bearing assembly
US4716327A (en) * 1986-11-05 1987-12-29 Universal Electric Company Electric motor bearing
JPH026264Y2 (fr) * 1986-12-09 1990-02-15
DE8712959U1 (fr) * 1987-09-25 1989-06-01 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
US5113104A (en) * 1989-10-19 1992-05-12 General Electric Company Structured product dynamoelectric machine
US5358342A (en) * 1992-12-17 1994-10-25 Case Corporation Pivot assembly with gravity lubrication feature
DE4318897A1 (de) * 1993-06-07 1994-12-08 Bosch Siemens Hausgeraete Wäschetrockner mit horizontal drehbar gelagerter Wäschetrommel
US5945756A (en) * 1997-10-07 1999-08-31 Siemens Canada Limited Ultra quiet electric motor for automotive applications

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014767A (en) * 1958-11-24 1961-12-26 Litton Ind Of California Ball joint bearing
US3947077A (en) * 1973-04-18 1976-03-30 Caterpillar Tractor Co. Sealed ball and socket connection
JPH01126430A (ja) * 1987-11-12 1989-05-18 Masahiro Morita 自動調心軸受ユニット
DE4112791C1 (en) * 1991-04-19 1992-07-16 Trw Ehrenreich Gmbh & Co Kg, 4000 Duesseldorf, De Axial strut joint with housing and bearing shell(s) - has L=shaped clamping ring, whose axial shank is radially resilient
US5718517A (en) * 1995-01-09 1998-02-17 Alphatech, Inc. Self-aligning bearing for high temperature applications
EP0962676A2 (fr) * 1998-06-04 1999-12-08 Rexnord Corporation Dispositif de palier avec des surfaces de palier sphériques

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 373 (M-861), 18 August 1989 (1989-08-18) & JP 01 126430 A (MASAHIRO MORITA), 18 May 1989 (1989-05-18) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10256334B4 (de) * 2002-12-03 2009-04-30 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Kugelgelenkvorrichtung für Gestängeverbindungen
EP2831434B1 (fr) * 2012-03-28 2018-07-18 Schaublin SA Palier sphérique comprenant un support

Also Published As

Publication number Publication date
DE60031360T2 (de) 2007-08-23
EP1114942A3 (fr) 2001-10-24
SG88785A1 (en) 2002-05-21
DE60031360D1 (de) 2006-11-30
US6349470B1 (en) 2002-02-26
EP1114942B1 (fr) 2006-10-18
JP2001193734A (ja) 2001-07-17

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